A326296 - cp's OEIS frontend

A326296 Triangle of numbers T(n,k) = 2floor(k/2)(n-k) + ceiling((k-1)^2/2), 1<=k<=n.

n	a(n)
1	0
2	0
3	1
4	0
5	3
6	2
7	0
8	5
9	4
10	5
11	0
12	7
13	6
14	9
15	8
16	0
17	9
18	8
19	13
20	12
21	13
22	0
23	11
24	10
25	17
26	16
27	19
28	18
29	0
30	13
31	12
32	21
33	20
34	25
35	24
36	25
37	0
38	15
39	14
40	25
41	24
42	31
43	30
44	33
45	32
46	0
47	17
48	16
49	29
50	28
51	37
52	36
53	41
54	40
55	41
56	0
57	19
58	18
59	33
60	32
61	43
62	42
63	49
64	48
65	51
66	50
67	0
68	21
69	20
70	37
71	36
72	49
73	48
74	57
75	56
76	61
77	60
78	61

[0, 0, 1, 0, 3, 2, 0, 5, 4, 5, 0, 7, 6, 9, 8, 0, 9, 8, 13, 12, 13, 0, 11, 10, 17, 16, 19, 18, 0, 13, 12, 21, 20, 25, 24, 25, 0, 15, 14, 25, 24, 31, 30, 33, 32, 0, 17, 16, 29, 28, 37, 36, 41, 40, 41, 0, 19, 18, 33, 32, 43, 42, 49, 48, 51, 50, 0, 21, 20, 37, 36, 49, 48, 57, 56, 61, 60, 61]

cp's OEIS Frontend

A326296 Triangle of numbers T(n,k) = 2floor(k/2)(n-k) + ceiling((k-1)^2/2), 1<=k<=n.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	3
6	2
7	0
8	5
9	4
10	5
11	0
12	7
13	6
14	9
15	8
16	0
17	9
18	8
19	13
20	12
21	13
22	0
23	11
24	10
25	17
26	16
27	19
28	18
29	0
30	13
31	12
32	21
33	20
34	25
35	24
36	25
37	0
38	15
39	14
40	25
41	24
42	31
43	30
44	33
45	32
46	0
47	17
48	16
49	29
50	28
51	37
52	36
53	41
54	40
55	41
56	0
57	19
58	18
59	33
60	32
61	43
62	42
63	49
64	48
65	51
66	50
67	0
68	21
69	20
70	37
71	36
72	49
73	48
74	57
75	56
76	61
77	60
78	61

n	a(n)
1	0
2	0
3	1
4	0
5	3
6	2
7	0
8	5
9	4
10	5
11	0
12	7
13	6
14	9
15	8
16	0
17	9
18	8
19	13
20	12
21	13
22	0
23	11
24	10
25	17
26	16
27	19
28	18
29	0
30	13
31	12
32	21
33	20
34	25
35	24
36	25
37	0
38	15
39	14
40	25
41	24
42	31
43	30
44	33
45	32
46	0
47	17
48	16
49	29
50	28
51	37
52	36
53	41
54	40
55	41
56	0
57	19
58	18
59	33
60	32
61	43
62	42
63	49
64	48
65	51
66	50
67	0
68	21
69	20
70	37
71	36
72	49
73	48
74	57
75	56
76	61
77	60
78	61

cp's OEIS Frontend

A326296 Triangle of numbers T(n,k) = 2*floor(k/2)*(n-k) + ceiling((k-1)^2/2), 1<=k<=n.

Table of values

List of values

A326296 Triangle of numbers T(n,k) = 2floor(k/2)(n-k) + ceiling((k-1)^2/2), 1<=k<=n.

n	a(n)
1	0
2	0
3	1
4	0
5	3
6	2
7	0
8	5
9	4
10	5
11	0
12	7
13	6
14	9
15	8
16	0
17	9
18	8
19	13
20	12
21	13
22	0
23	11
24	10
25	17
26	16
27	19
28	18
29	0
30	13
31	12
32	21
33	20
34	25
35	24
36	25
37	0
38	15
39	14
40	25
41	24
42	31
43	30
44	33
45	32
46	0
47	17
48	16
49	29
50	28
51	37
52	36
53	41
54	40
55	41
56	0
57	19
58	18
59	33
60	32
61	43
62	42
63	49
64	48
65	51
66	50
67	0
68	21
69	20
70	37
71	36
72	49
73	48
74	57
75	56
76	61
77	60
78	61